im in search of some help for my dads GT 97 in a Mortal combat cabinet ,
its the volume thats not working correctly , it used to have a volume pot on it behind the coin door, and it was faulty so it was removed as its no longer there , and the volume is on loud and i tried to control it with the track ball but it has no bearing on the control of the volume what so ever . its just on max , Is there a wiring diagram to help me out >?
Ive traced the wires yellow/red tracer and yellow/green tracer from the board to the speakers and that where the end is on the speakers .